Artículo
Measurement of Triple-Gauge-Boson Couplings of the W Boson at LEP
Achard, P.; Adriani, O.; Aguilar Benitez, M.; Alcaraz, J.; Dova, Maria Teresa
; Vodopianov, I.; Vogel, H.; Vogt, H.; Vorobiev, I.; Vorobyov, A.A.; Wadhwa, M.; Wang, Q.; Wang, X.L.; Wang, Z.M.; Weber, M.; Wilkens, H.; Wynhoff, S.; Xia, L.; Xu, Z.Z.; Yamamoto, J.; Yang, B.Z.; Yang, C.G.; Yang, H.J.; Yang, M.; Yeh, S.C.; Zalite, An.; Zalite, Yu.; Zhang, Z. P.; Zhao, J.; Zhu, G.Y.; Zhu, R.Y.; Zhuang, H.L.; Zichichi, A.; Zimmermann, B.; Zöller, M.; L[Tres] Collaboration
Fecha de publicación:
04/2004
Editorial:
Elsevier Science
Revista:
Physics Letters B
ISSN:
0370-2693
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The CP-conserving triple-gauge-boson couplings, g Z 1 , κ γ , λ γ , g Z 5 , κZ and λ Z are measured using hadronic and semi-leptonic W-pair events selected in 629 pb -1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The results are combined with previous L3 measurements based on data collected at lower centre-of-mass energies and with the results from single-W production and from events with a single-photon and missing energy. Imposing the constraints κZ = g Z 1 - tan 2 θW(κ γ - 1) and λZ = λ γ , we obtain for the C and P conserving couplings the results: g Z 1 = 0.966 ± 0.033(stat) ± 0.015(syst), κ γ = 1.013 ± 0.066(stat) ± 0.026(syst), λ γ =-0.021 ±0.035(stat) ±0.017(syst).
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Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Achard, P.; Adriani, O.; Aguilar Benitez, M.; Alcaraz, J.; Dova, Maria Teresa; et al.; Measurement of Triple-Gauge-Boson Couplings of the W Boson at LEP; Elsevier Science; Physics Letters B; 586; 3-4; 4-2004; 151-166
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